"H" PIPE OR NOT
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Joined: Jul 2001
Posts: 76
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From: philly pa
Re: "H" PIPE OR NOT (Ken74Conv)
i don't have either on my vette (yet) but i remember reading awhile ago back in a popular hot rodding mag that the best place to install an H pipe is at the hottest spot behind the collectors. they marked a long length of the exaust with a crayon, drove the car around, and checked to see whichever spot the crayon melted the most- that's where they installed the H pipe. it wasn't on a vette (i think a chevelle) but the article said it can apply to any car. anyone else ever hear of that??
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: "H" PIPE OR NOT (Ryan77)
Where's the proof that a balance pipe increases torque? I've never seen it. I've never seen it lower performance, that's for sure. I've seen dyno comparisons w/ a very small difference but attributing it to the H-pipe is guessing IMO, it could be due to something else. It certainly mellows out the sound.
I ran w/o a H-pipe and this was the result: :)
http://www.crossfire.homeip.net:81/t...hdualborla.wav
Marck
[Modified by Twinnie, 6:48 PM 7/4/2002]
[Modified by Twinnie, 2:57 AM 7/5/2002]
I ran w/o a H-pipe and this was the result: :)
http://www.crossfire.homeip.net:81/t...hdualborla.wav
Marck
[Modified by Twinnie, 6:48 PM 7/4/2002]
[Modified by Twinnie, 2:57 AM 7/5/2002]
Drifting
Joined: Jan 2002
Posts: 1,484
Likes: 0
From: Northampton Ma
Re: "H" PIPE OR NOT (ZiVvmO)
A few months ago, in Car Craft magazine, they tested open headers, an X pipe, and an H pipe. The X pipe won, even over the open headers(which are usually way to loud to be street legal). I'll see if I can dig up the article and post it.
[Modified by Ryan77, 7:48 PM 7/5/2002]
[Modified by Ryan77, 7:48 PM 7/5/2002]
[Modified by Ryan77, 7:48 PM 7/5/2002]
[Modified by Ryan77, 7:48 PM 7/5/2002]
Race Director
Joined: Oct 2000
Posts: 15,037
Likes: 79
From: central FL, near the beach.
Re: "H" PIPE OR NOT
SNW Vette put an X pipe on his 2002.
at 6000 rpm back pressure went UP :eek: from 6 to 7 PSI!
and he did not like the sound.
He took it off!
Everything else points to using it, but :cuss
at 6000 rpm back pressure went UP :eek: from 6 to 7 PSI!
and he did not like the sound.
He took it off!
Everything else points to using it, but :cuss
